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Assessing the urban heat island and its energy impact on residential buildings in Mediterranean climate: Barcelona case study

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10.1016/j.enbuild.2017.04.025
 
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hdl:2117/103922

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Salvati, AgneseMés informacióMés informacióMés informació
Coch Roura, HelenaMés informacióMés informacióMés informació
Cecere, Carlo
Document typeArticle
Defense date2017-04-14
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
The Urban Heat Island (UHI) effect is particularly concerning in Mediterranean zone, as climate changeand UHI scenarios foresee a fast growth of energy consumption for next years, due to the widespread ofair conditioning systems and the increase of cooling demand. The UHI intensity is thus a key variable forthe prediction of energy needs in urban areas.This study investigates the intensity of UHI in Barcelona (Spain), the densest Mediterranean coastalcity, and its impact on cooling demand of residential buildings.The experimental analysis is based on temperature data from rural and urban Weather Stations andfield measurements at street level. The maximum average UHI intensity is found to be 2.8¿C in winterand 1.7¿C in summer, reaching 4.3¿C at street level. Simulations performed with EnergyPlus indicatethat the UHI intensity increases the sensible cooling load of residential buildings by around 18%–28%,depending on UHI intensity, amount of solar gains and cooling set point.In the light of the results, the UHI intensity in Mediterranean context should be properly consideredin performing energy evaluations for urban contexts, since standard meteorological data from airportweather stations are not found to be accurate enough.
CitationSalvati, A., Coch, H., Cecere, C. Assessing the urban heat island and its energy impact on residential buildings in Mediterranean climate: Barcelona case study. "Energy and buildings", 14 Abril 2017, núm. 146, p. 38-54. 
URIhttp://hdl.handle.net/2117/103922
DOI10.1016/j.enbuild.2017.04.025
ISSN0378-7788
Publisher versionhttp://www.sciencedirect.com/science/article/pii/S0378778817312914
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